The 14th Amendment to the US Constitution, ratified by Congress
in 1868 as part of the civil-rights amendments after the Civil
War, says, "All persons born or naturalized in the United States
and subject to the jurisdiction thereof, are citizens of the
United States and of the State wherein they reside."

In a video of the interview published by Axios, Trump did not
elaborate on the legal arguments an executive order would
include. The proposal, which is sure to face challenges in court,
would probably seek to deny citizenship only to children born in
the US to unauthorized immigrant parents. Trump's lawyers would
most likely argue that the amendment applies only to children of
lawful US residents and not unauthorized immigrants or those on
temporary visas.

"How ridiculous, we're the only country in the world where a
person comes in, has a baby, and the baby is essentially a
citizen of the United States for 85 years with all of those
benefits," Trump said. "It's ridiculous. It's ridiculous and it
has to end."